Improvement in tereaspheres



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Letters Patent No. 69,842, elated October l5, 1867.

IMPROVEMENT IN TERRASPHERES.

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TO ALL WIIOM IT MAY CONGERN:

Be it known that LELEAZER ROOT, of 'Ierr'e Haute, in the county of Vigo, and State of Indiana, have invented new.and useful Improvements Terraspheres; and I de hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part. of this specification.

The drawing represents parts of a-terrasphere inwhieh my improvements are exhibited.

This invention relates to improvements in the terrasphere, for which Letters Patent were granted to me on the 18th day of December, 1866, which consists in hanging the axis of the earth at the north pole in a bearing at-the end of an arm so constructed and connected with gearing as to preserve its vertical position while the earth rotates on its'own axis, and also while it makes its revolution around the sun in the plane of ecliptic. -Also in attaching the moon to the axis which carries the said vertical arm that bears the northern end of' the earths axis, instead of connecting it directly with the axis ot' the earth in the manner provided by the Letters Patent aforesaid. Alsoin hanging the axis of the index at the south pole of the earth in a tubular bearing, instead of suspending it on a pivot as previously arranged.

The globe A represents the earth, and B the axis, on which is placed the sun in a complete terrasphero, but not represented in the drawing. The axis B passes-through a supportingframe, C, which revolves on it to carry the earth in her orbit around the sun,land one end of the axis B is made fast to the supporting standard D. A small pinion, a, is made fast on the axis B, at one side et' the revolving frame C, which pinion gears t into an intermediate spur-wheel, b, gearing into another pinion, a', on the opposite side, and of the same size as pinion a. The wheels b and a are hung in the side of the revolving frame C. The axis c of the pinion a projects through into the inside of the frame C, and upon the axis is secured by a set-screw the arm E that carries the north end of the axis 4ot' the earth, and preserves its vertical position while the earth revolves in its orbit and on its own axis, so that i-t retains always the same angle of inclination to the plane of the eeliptie. The axis ofthe earth has a ball on its .end to hang in a socket in the arm E, or it may be suspended to it in a tubular bearing with shoulders. The southern end of theearths axis is suspended injthe small lindex g, which has an axis supported in a tubular bearing, h, instead of being hung on a pivot, as provided in the arrangement described in my Letters Patent aforesaid. On the axis c of the pinion a is hung the arm k that supports the moon F, moving loosely around it to allow the moon to be placed in position by hand, as desired with relation to the earth. It will be observed that when the frame C revolves upon the axis B, to carry the earth in its orbit around the sun, the gear-wheels ,connecting the axis B with the axis c will move in concert with each other and thus keep the armE in a vertical position, to preserve the same angle of inclination of the earths axis to the plane of the eoliptie throughout her orbit.

Having described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The arm E, sustaining the north end of the axis of the earth A, combined with the axis e, and the goarconnection with the axis B, so as to' preserve its vertical position throughout the revolution of the earth in her orbit, substantially as described. l

2. Hanging the index y, at the south pole of the earth, in a tubular bearing, substantially as described.

' ELEAZER ROOT.

Witnesses: Y

HENRY F. INGRAHAM, J onN AUsTEN MERRIGK. 

